DIALOG:
What is Semantic compression?
- Semantic compression In natural language processing, semantic compression is a process of compacting a lexicon used to build  a textual document (or a set of documents) by reducing language heterogeneity, while maintaining text semantics.
- What else can you tell me about it?
- As a result, the same ideas can be represented using a smaller set of words.
- Is there anything else important?
- In most applications, semantic compression is a lossy compression, that is, increased prolixity does not compensate for the lexical compression, and an original document cannot be reconstructed in a reverse process.
- Are there any other interesting aspects about this article?
- Semantic compression is basically achieved in two steps, using frequency dictionaries and semantic network:  Step 1 requires assembling word frequencies and  information on semantic relationships, specifically hyponymy.
- What happens in Step 1?
- Moving upwards in word hierarchy,  a cumulative concept frequency is calculating by adding a sum of hyponyms' frequencies to frequency of their hypernym: formula_1 where formula_2 is a hypernym of formula_3.
- Is there anything else that happens in this step?
- 
Next turn: Then, a desired number of words with top cumulated frequencies are chosen to build a targed lexicon.


Problem: What could be the response? DIALOG:
What is the difference between Neaethus similis and other planthoppers?
- 
A: Neaethus similis Neaethus similis is a species of tropiduchid planthopper in the family Tropiduchidae.


QUESTION: Write another turn of this conversation. DIALOG:
What is Phanom Phrai District?
- Phanom Phrai District Phanom Phrai (, ) is a district ("amphoe") in the southeastern part of Roi Et Province, northeastern Thailand.
- What are the neighboring districts?
- Neighboring districts are (from the southwest clockwise): Nong Hi, Suwannaphum, At Samat, Selaphum of Roi Et Province; Mueang Yasothon, Kham Khuean Kaeo, Maha Chana Chai of Yasothon Province; and Sila Lat of Sisaket Province.
- How many sub-districts are there?
- The district is divided into 13 sub-districts ("tambons"), which are further subdivided into 160 villages ("mubans").
- Is there a city or town in the district?
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ANS: Phanom Phrai is a township ("thesaban tambon") which covers parts of "tambon" Phanom Phrai.


question: Write a response. DIALOG:
What did critics say about the film Voyager?
- In their review in "Spirituality & Practice", Frederic and Mary Ann Brussat called "Voyager" a "mesmerizing screen interpretation of a Max Frisch novel" with Sam Shepard delivering "his best performance in years. " The Brussats conclude, "Voyager impresses with its top-drawer performances, its globe-trotting sophistication, and its literary treatment of fate." In his DVD Savant Review in "DVD Talk", Glenn Erickson gave the "uncompromised adaptation" of Max Frisch's novel an "Excellent" rating, writing, "Schlöndorff does a fine job of creating a 1957 ambience without Hollywood trappings ...
- Are there any other interesting aspects about this article?
- The production helped revive an extinct Constellation "Connie" prop airliner for the movie, and staged an impressive desert crash without special effects.
- What did the critics say about the 1957 ambience without Hollywood trappings?
- 
response: Glimpses of New York streets give an impression of late-50s cars, and a few costumes do the rest.


Q: See the conversation. DIALOG:
What does Kevin Cahill have to do with the devolution of power in Cornwall?
- Cahill concludes his Business Age article with the lament that Cornwall will not recover until the gap between the tax take and the exchequer give is at least neutralised and better still, reversed.
- When was Business Age published?
- 
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Next: The magazine ceased publication in 2002, having gone bankrupt for the second time.


Q: See the conversation. DIALOG:
What happened in the 2014 NASCAR Sprint All-Star Race?
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Next:
2014 NASCAR Sprint All-Star Race The 2014 NASCAR Sprint All-Star Race (XXX) was a NASCAR Sprint Cup Series stock car race held on May 17, 2014, at Charlotte Motor Speedway in Concord, North Carolina.